Large stereoscopic LED display by use of parallax barrier of aperture grille type (Invited Paper)

Abstract

We propose a large parallax barrier by use of aperture grille. Main advantages of using aperture grille include no reflection and no absorption in apertures, as well as wide viewing angle. These advantages are investigated with theoretical calculations and experiments by use of several kinds of LED panels, such as a fine-pitch LED panel and a 140-inch large LED panel. Limitations of viewing angle by parallax barrier are analyzed in conventional black stripes on a transparent substrate type and in aperture grille type. Experimental results show use of aperture grille increases contrast and reduce reflection on the aperture surface.

The spliced high-resolution three-dimensional display based on depth offset mapping algorithm

“…Therefore, most large-size display devices use the splicing method to save costs, and many large-size naked-eye 3D display devices are also designed on this basis. The traditional spliced naked-eye 3D display system is mainly based on LED panels and slit gratings [9]. The LED display panel can make up for the problem of low brightness caused by the slit grating.…”

Quantitative measurement of global crosstalk for 3D display

“…The left and right images are separated by viewing zone forming optics (VZFO). [6][7][8] For autostereoscopic displays, the most commonly used VZFO can be categorized as parallax barrier, microlens-array and lenticular. However, the leakage of the view from one eye to another will spoil the viewing experience.…”